Kestrel 4000 Pro SL Ultegra Triathlon TT Time Trial Tri Bike 2012

Quick Overview

Designed for the athlete seeking serious speed on the road, the 4000 is the fastest bike Kestrel has ever produced. With the aid of the A2 Wind Tunnel and a brand new carbon lay-up, the 4000 is 12% stiffer in the bottom bracket and chainstays than the 2011 model, resulting in more power to the pedals and an even faster ride. Used by top triathletes and professional cyclists around the world, including 4-time Ironman Champion Andy Potts, 2009 Giro dItalia Winner Denis Menchov, and 2008 Tour de France Champion Carlos Sastre, the 4000 is available as both a frameset and a complete bicycle.

Details

Carbon is the fiber
of our DNA Like all living organisms, Kestrel has a genetic code – a DNA – that is
at the core of everything we do. We focus on four critical elements
when we design our award-winning bikes: fit, material, testing, and
athletes.

FIT- It’s all about harmony between rider and machine. We don’t use
“open molds” on any of our framesets, forks, or components. Us ing
our own molds allows for total design and performance integration. The
Kestrel design process begins with determining what body position will
help our riders perform their best. Kestrel’s road and tri geometries have
been refined over two decades with input from athletes and fit experts
in the industry, and our geometries are designed to fit a wide range of
customers: weekend riders to full-time pros.

MATERIAL- Carbon is the backbone of every Kestrel—it has been since
1986. Kestrel uses two grades of carbon: 700K & 800K. The 700K is
all muscle. Less resistant to bending, it’s utilized in high-stress areas
to reduce flex. And the 800K adds finesse. The lighter of the two, it’s
utilized in lower stress areas to achieve the lightest possible overall frame
weight. Each model employs a unique blend of these two fibers to create a powerful yet light weight bike.

TESTING- Kestrels aren’t just tested in the wind tunnel, they are designed in the wind tunnel. That means if certain standards aren’t
reached, it’s back to the drawing board. In facilities like the A2 Wind
Tunnel in Charlotte, NC, the numbers don’t lie.
We use extensive 3-D solid model computer drawings to produce fullscale prototypes, which we meticulously review and evaluate to search
for every possible tenth of a second advantage. Testing begins at 0°
Yaw and goes up to 30°. Wind speeds are set at 10, 20, and 30 MPH.
And unlike most companies, we test more than just the bike – we put a
rider on the bike as well as different wheels, bars, and parts, all in an effort to create the best possible package for each Kestrel frameset. Once
the aerodynamics are nailed down, we simulate the most arduous riding
conditions so we can refine material lay-ups and structural shapes to
optimize stiffness and control.

ATHLETES- Kestrel has always been about positioning itself at the top of
the sport of triathlon, and that means working with athletes in the upper
echelons of the sport. From the early days when 2-time Ironman World
Champion Chris McCormack rode Kestrel’s Airfoil to victory to our current Ironman Champion and U.S. Olympian Andy Potts and professional
cyclists Denis Menchov & Carlos Sastre, winners of two of cycling’s
Grand Tours, Kestrel’s partnership with world-class athletes continues to
inspire us to make better bikes. After all, it’s in our DNA.